Modular device for on-line monitoring of dissolved gases in transformer oil

CN224328056UActive Publication Date: 2026-06-05LONGTAN HYDROPOWER DEV CO LTD HESHAN POWER GENERATION CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LONGTAN HYDROPOWER DEV CO LTD HESHAN POWER GENERATION CO
Filing Date
2025-05-22
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing online monitoring devices for dissolved gases in transformer oil suffer from poor installation adaptability, difficult maintenance, and insufficient environmental adaptability, resulting in complex construction, high costs, and a modular design that cannot be flexibly adjusted.

Method used

It adopts a modular design and stacked installation structure, including independent oil circuit and oil-gas separation modules, gas analysis and processing modules, and display and alarm modules. The modules can be spliced ​​longitudinally, laterally, or stacked by nesting guide grooves and positioning bosses. Combined with adjustable threaded joints and snap-fit ​​structures, it enhances sealing and maintainability.

Benefits of technology

It significantly improves the installation adaptability and maintenance efficiency of the equipment, reduces construction and maintenance costs, and enhances the reliability and flexibility of the equipment.

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Abstract

The utility model discloses a modularization device of transformer oil dissolved gas on -line monitoring, the device is divided into independent first module, second module and third module, wherein the first module contains oil inlet pipe, oil return pipe, oil pump and oil gas separator, and the gas output end of oil gas separator is equipped with first interface, the second module contains gas pump, gas holder, laser spectrum analyzer and data processing module, and the input end of gas pump is detachably connected with first interface, the third module contains display screen, speaker and signal transmission module, and signal transmission module is detachably connected with data processing module, the shell of each module is nested splicing through the guide groove and positioning boss of laminated mounting structure, supports longitudinal, transverse or superimposed multidirectional combination installation, realizes flexible adaptation transformer external space and independent replacement failure module. The device is used for real -time monitoring transformer oil dissolved gas, promotes installation efficiency and maintenance convenience, and is suitable for power equipment fault early warning.
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